| Project/Area Number |
22740120
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Astronomy
|
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| Research Institution | Japan Aerospace Exploration Agency (2011-2012)
Kyoto University (2010) |
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Principal Investigator |
ISOBE Naoki 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 研究員 (80360725)
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| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | X線γ線天文学 / 活動銀河核 / 巨大バイナリブラックホール / 周期的X線光度変動 / 全天X線監視装置MAXI / X線天文学 / バイナリブラックホール / 周期的光度変動 / X線長期観測 |
|---|
| Research Abstract |
Using the Monitor of All-sky X-ray Image (MAXI), we searched for a binary black hole system, which is an active galaxy hosting two supermassive black holes at its center. A binary black hole system provides one of the important evidence that a supermassive black hole grows through a merger between two black holes. We tried to probe an X-ray periodicity due to the Keplerian motion of the two black holes, from about 100 active galaxies detected with MAXI. However, we have failed to discover a supermassive binary black hole system. This result will put an important constraint on the theory of the black hole evolution through mergers.
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